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package com.group4.entity;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToMany;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;

/**
 *
 * @author Victor Cernea & José
 */
@Entity
public class Course implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    private String courseName;
    private int yearNumber;
   
    @ManyToOne
    @JoinColumn(name = "TEACHER")
    private Teacher teacher;
    
    @ManyToMany(mappedBy="sCourses")
    private List<Student> students;
    
    @OneToMany(mappedBy = "course")
    private List<Lesson> lesson;

    public Course() {
    }
    
    public Course(String courseName, int yearNumber, Teacher teacher) {
        this.courseName = courseName;
        this.yearNumber = yearNumber;
        this.teacher = teacher;
        students = new ArrayList();
        lesson = new ArrayList();
    }
      
    public String getCourseName() {
        return courseName;
    }

    public void setCourseName(String courseName) {
        this.courseName = courseName;
    }

    public List<Lesson> getLesson() {
        return lesson;
    }

    public void setLesson(List<Lesson> lesson) {
        this.lesson = lesson;
    }

    public List<Student> getStudents() {
        return students;
    }

    public void setStudents(List<Student> students) {
        this.students = students;
    }

    public Teacher getTeacher() {
        return teacher;
    }

    public void setTeacher(Teacher teacher) {
        this.teacher = teacher;
    }

    public Long getId() {
        return id;
    }

    public int getYearNumber() {
        return yearNumber;
    }

    public void setYearNumber(int yearNumber) {
        this.yearNumber = yearNumber;
    }

    public void setId(Long id) {
        this.id = id;
    }

    @Override
    public int hashCode() {
        int hash = 0;
        hash += (id != null ? id.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Course)) {
            return false;
        }
        Course other = (Course) object;
        if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return "com.group4.entity.Course[ id=" + id + " ]";
    }
    
}
